Hi, With database backups its unlikely we can acheive the ratios see in filesystem backups. Please send the diagnostics logs (HTML UI -> System Page -> Run Diagnostics) to [email protected]
By default the VTL tries to choose a large block size (256kb) for computing the hash which reduces the number of deduplication tables entries and memory requirements. This can be changed to a lower block size but we would need to the VTL configuration first On Wed, Jun 5, 2019 at 11:38 AM Jorge Bejarano <[email protected]> wrote: > > Hello, > > I'm taking backups of Oracle Databases with rman and Networker, and the > deduplication ratio does not exceed 4x. > > This is my rman configuration: > > CONFIGURE DEFAULT DEVICE TYPE TO sbt; > run > { > allocate channel t2 type 'SBT_TAPE' format 'b_%u_%p_%c'; > SEND DEVICE TYPE 'SBT_TAPE' > 'NSR_ENV=(NSR_SERVER=hostname,NSR_CLIENT=hostname,NSR_DATA_VOLUME_POOL="Default",NSR_NO_MULTIPLEX=TRUE,NSR_SAVESET_RETENTION=5 > days)'; > BACKUP filesperset 1 DATABASE; > } > EOF > > The backup of the file systems of the same clients with Networker has an > average of 30x. > > > Any advice will be of great help. > > Thank you! > > -- > You received this message because you are subscribed to the Google Groups > "QUADStor VTL" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/quadstor-vtl/f159ac17-98fe-435d-b7f2-c971f50a177b%40googlegroups.com. -- Virtual Tape Library (VTL) https://www.quadstor.com/virtual-tape-library.html VTL software download https://www.quadstor.com/vtl-extended-edition-downloads.html VTL documentation https://www.quadstor.com/vtl-documentation.html --- You received this message because you are subscribed to the Google Groups "QUADStor VTL" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt5UdEyrjM-s9CBKvqRBkQ221WVsAawXj8X%3DduK4GW3ZuA%40mail.gmail.com.
